/*
 * Kiwix Android
 * Copyright (c) 2019 Kiwix <android.kiwix.org>
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 */

package org.kiwix.kiwixmobile.testutils;

import android.view.View;
import android.view.ViewGroup;
import android.view.ViewParent;
import org.hamcrest.Description;
import org.hamcrest.TypeSafeMatcher;

public class Matcher {
  public static org.hamcrest.Matcher<View> childAtPosition(
    final org.hamcrest.Matcher<View> parentMatcher, final int position) {
    return new TypeSafeMatcher<View>() {
      @Override
      public void describeTo(Description description) {
        description.appendText("Child at position " + position + " in parent ");
        parentMatcher.describeTo(description);
      }

      @Override
      public boolean matchesSafely(View view) {
        ViewParent parent = view.getParent();
        return parent instanceof ViewGroup && parentMatcher.matches(parent)
          && view.equals(((ViewGroup) parent).getChildAt(position));
      }
    };
  }
}
